`PQR` is a rigid equilateral triangle frame of a side length `L`. Forces `F_1, F_2` and `F_3` are acting along `PQ, QR, PR`. If the system is in rotational equilibrium find the relation between the forces.

Under the action of three forces F ,F and sqrt(2) F, a particle remains in equilibrium. Find the angle between the first two forces.

ABC is an equilateral triangle with O as its centre vec(F_(1)),vec(F_(2)) " and " vec(F_(3)) represent three forces acting along the sides AB, BC and AC respectively. If the torque about O is zero then the magnitude of vec(F_(3)) is

If three forces vec(F_(1)),+vec(F_(2))andvec(F_(3)) are represented by three sides of a triangle and vec(F_(1))+vec(F_(2))=-vec(F_(3)) , then these three forces are concurrent forces and satisfy the condition for equilibrium . Statement II : A triangle made up of three forces vecF_(1),vecF_(2)andvecF_(3) as sides taken in the same order ,satisfy the condition for translatory equilibrium . In the light of the above statements ,choose the most appropriate answer from the options given below :

A closed loop PQRS carrying a current is place in a unifrom magnetic forces on segments PS, SR and RQ are F_(1), F_(2) and F_(3) respectively and are in the plane of the paper and along the directions shown, the force on the segment QP is

A closed loop PQRS carrying a current is place in a unifrom magnetic forces on segments PS, SR and RQ are F_(1), F_(2) and F_(3) respectively and are in the plane of the paper and along the directions shown, the force on the segment QP is

A closed loop PQRS carrying a current is place in a unifrom magnetic forces on segments PS, SR and RQ are F_(1), F_(2) and F_(3) respectively and are in the plane of the paper and along the directions shown, the force on the segment QP is